I like a podcast by the Crashlands devs, and instead of talking about great or perfect games, they talk about games that "nailed it" vs "missed the mark." There's no such thing as a singular perfect game, but games that flawlessly execute their devs' vision or games that click with you, personally, in a way that other games just don't.

My personal example is Magicka, because it's incredibly janky and flawed and has the worst fucking netcode I've ever seen that still technically works. But the free-flowing spellcasting and globally-enabled friendly fire, it's a combination that hit me so perfectly it actually shifted my taste in games ever since. It feels like something is missing now when a game doesn't trust me enough to give me enough power to be a danger to myself.